We use Let’s Encrypt for providing SSL certificate to our clients as hosting provider.
Usually they have own domain names and delegates their DNS to us, but for those who don’t have any domain names we provide support of
technical subdomains on domain
na4u.ru is used by many of our’s clients and therefore we issued SSL certificates for them using Let’s Encrypt.
But recently we hit rate limit.
And finally our question: how we can mitigate this problem?
Example domains of our clients is:
- u969.na4u.ru (testing)
Response of ACME protocol:
Error creating new order :: too many certificates already issued
Message on tools.letsdebug.net
The Registered Domain (na4u.ru) has used 103 of 50 weekly certificates. ( https://tools.letsdebug.net/cert-search?m=domain&q=u969.na4u.ru&d=168)